Personnel:
n
Specialized personnel
The limits for the T
max
values (Integral T and XT) and T
maxTank
values (only Inte-
gral XT) are set automatically,as soon as the heat transfer liquid is selected in
the device menu.
Therefore the value ranges of T
max
and T
maxTank
to be set are limited by the
heat transfer liquid. You can reduce these values of T
max
and T
maxTank
, but not
set them higher than the specified limits.
The start value is 55°C on delivery.
When the heat transfer liquid is changed, the T
max
value of the
previously used heat transfer liquid is always active and must be
adjusted, if necessary.
1.
Press and hold down the T
max
key.
The values T
max
and T
maxTank
appear on the display.
2.
With the arrow keys select one of the two T
max
values, while keeping
the T
max
key pressed down.
3.
Press the Enter key.
The entry window appears. The cursor flashes under the T
max
value.
4.
Change the value with the arrow keys.
If you release the T
max
key, the process is aborted and T
max
value does not change.
5.
Press [OK] to confirm the new value.
6.
Press [ANW] softkey to confirm the new value.
The new value is active.
5.6 Setting temperature limits Tih and Til
This function is used to set temperature limits Tih and Til. The temperature
limits limit the set temperature. A warning is issued if the internal actual
temperature is outside the temperature limits. These temperature limits
should reflect the limits of your application. A tolerance of 2 K should
also be added to the upper and lower temperature limits to compensate
for overshooting by the control, in particular external controls. The working
temperature range of the heat transfer liquid must also be taken into consid-
eration when defining temperature limits.
Fig. 33: Display Tmax
Fig. 34: Enter Tmax (here TmaxTank)
V4
Integral process thermostats with flow control unit
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